Can we remove button labels?

Hello.
Thank you for this wonderful plugin.

I have yet to implement it on a live site but I’ve been testing its features and customization in anticipation of doing so. One thing I wish I could do is a checkbox to remove the button label. For example, I would want to use the “Love” style of button, but without the word “love” in it.

I imagine I can CSS it out, but it would be convenient to have this as a setting.

Thanks!